Home / 15,683.56-21,641.88-8,968.96

Finding the Fourth Proportional to 15,683.56, 21,641.88 and 8,968.96

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Solution

The fourth proportional to 15,683.56, 21,641.88 and 8,968.96 is: 12,376.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,683.56 : 21,641.88 = 8,968.96 : x
  2. Step 2: Convert to fraction form
    15,683.56/21,641.88 = 8,968.96/x
  3. Step 3: Cross multiply
    15,683.56x = 21,641.88 × 8,968.96
  4. Step 4: Simplify right side
    15,683.56x = 194,105,156.04
  5. Step 5: Solve for x
    x = 194,105,156.04/15,683.56
  6. Step 6: Final answer
    x = 12,376.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.